Finding the Fourth Proportional to 476,805.16, 658,002.72 and 261,959.14

Step by Step Solution

1. Step 1: Write the proportion equation
   476,805.16 : 658,002.72 = 261,959.14 : x
2. Step 2: Convert to fraction form
   476,805.16/658,002.72 = 261,959.14/x
3. Step 3: Cross multiply
   476,805.16x = 658,002.72 × 261,959.14
4. Step 4: Simplify right side
   476,805.16x = 172,369,826,648.86
5. Step 5: Solve for x
   x = 172,369,826,648.86/476,805.16
6. Step 6: Final answer
   x = 361,509.99